quests bring meaning to the game if you want them to do so (by reading them). grinding mobs actually has 0 purpose other than to increase your level, which is a meta-game concept more than anything to a player. there's no attachment to killing random mob X 1000 times to level up. consider that "blah" if you like, but people prefer having direction and immersion while leveling up rather than sitting in town shouting endlessly to get 7 other people to join you on trek to slay 500 coblyns in their home for no in-game reason whatsoever.